diff options
| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-11-01 11:49:34 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-11-01 11:49:34 +0000 |
| commit | ef1d3b57d2d00795c6eb01fe6b8ef6f413163c67 (patch) | |
| tree | af7a96746cc35a998026456f2e51bdbaea611a6a /gcc/targhooks.h | |
| parent | ef339d6e2e846ba7ff544def1d79f10762da223d (diff) | |
Add a fixed_size_mode class
This patch adds a fixed_size_mode machine_mode wrapper
for modes that are known to have a fixed size. That applies
to all current modes, but future patches will add support for
variable-sized modes.
The use of this class should be pretty restricted. One important
use case is to hold the mode of static data, which can never be
variable-sized with current file formats. Another is to hold
the modes of registers involved in __builtin_apply and
__builtin_result, since those interfaces don't cope well with
variable-sized data.
The class can also be useful when reinterpreting the contents of
a fixed-length bit string as a different kind of value.
2017-11-01 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* machmode.h (fixed_size_mode): New class.
* rtl.h (get_pool_mode): Return fixed_size_mode.
* gengtype.c (main): Add fixed_size_mode.
* target.def (get_raw_result_mode): Return a fixed_size_mode.
(get_raw_arg_mode): Likewise.
* doc/tm.texi: Regenerate.
* targhooks.h (default_get_reg_raw_mode): Return a fixed_size_mode.
* targhooks.c (default_get_reg_raw_mode): Likewise.
* config/ia64/ia64.c (ia64_get_reg_raw_mode): Likewise.
* config/mips/mips.c (mips_get_reg_raw_mode): Likewise.
* config/msp430/msp430.c (msp430_get_raw_arg_mode): Likewise.
(msp430_get_raw_result_mode): Likewise.
* config/avr/avr-protos.h (regmask): Use as_a <fixed_side_mode>
* dbxout.c (dbxout_parms): Require fixed-size modes.
* expr.c (copy_blkmode_from_reg, copy_blkmode_to_reg): Likewise.
* gimple-ssa-store-merging.c (encode_tree_to_bitpos): Likewise.
* omp-low.c (lower_oacc_reductions): Likewise.
* simplify-rtx.c (simplify_immed_subreg): Take fixed_size_modes.
(simplify_subreg): Update accordingly.
* varasm.c (constant_descriptor_rtx::mode): Change to fixed_size_mode.
(force_const_mem): Update accordingly. Return NULL_RTX for modes
that aren't fixed-size.
(get_pool_mode): Return a fixed_size_mode.
(output_constant_pool_2): Take a fixed_size_mode.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r254300
Diffstat (limited to 'gcc/targhooks.h')
| -rw-r--r-- | gcc/targhooks.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/targhooks.h b/gcc/targhooks.h index 86862048c28..15bbf5cdf24 100644 --- a/gcc/targhooks.h +++ b/gcc/targhooks.h @@ -236,7 +236,7 @@ extern int default_jump_align_max_skip (rtx_insn *); extern section * default_function_section(tree decl, enum node_frequency freq, bool startup, bool exit); extern machine_mode default_dwarf_frame_reg_mode (int); -extern machine_mode default_get_reg_raw_mode (int); +extern fixed_size_mode default_get_reg_raw_mode (int); extern bool default_keep_leaf_when_profiled (); extern void *default_get_pch_validity (size_t *); |